Automatic boiler-feeder.



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PATENTBD APR. 30, 1907,.

J. H. MURRAY.

APPLICATION FILED MAY 18.1906.

TRAP

AUTOMATIC BOILER FEEDER.

PATENTBD APR. so, 1907. J. H. MURRAY.

AUTOMATIC BOILER FEEDER.

APPLICATION FILED MAY 18. 1906.

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[IVI/EN TOR www UNrTnn sTaTns PATENT onrrcn.

, JAMES H. MURRAY, OF FAIRFIELD, MAINE.`

AUTOMATIC Bomen-FEEDER.

No. 852,286. l

Specification of Letters Patent.

Patented April 30, 1907.

Application led May 18, 1906. Serial No. 317,603.

set and State of Maine, have invented cert-ain new and useful Improvements in Automatic Boiler-Feeders; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same. Y

My invention relates to improvements in automatic boiler' feeders, the object of the invention being to provide an improved regulatorwhich will automatically control the level of Water in the boiler or boilers by regulating the operation of the feed pump, as the regulator will control the supply of steam passing to the pump.-

A further object is to provide an improved arrangementv o f pipes connecting the boilers, regulator, and drain, and provide three-way cocks at the juncture of the water pipes and blow oil pipes of the, boilers to control the flow of water and cut out any boiler from the circuit and open ift to the drain.

With these and other objects in view, the invention consists in certain novel features 'of construction and combinations and arrangements of parts -as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view illustrating my improvements. Fig. 2 is ani'end view. Fig. 3 is a side view. Figs. 4, 5, and 6, are detail views of one ofthe plug cocks, and Figs. 7, 8, and 9, are detail views of the steam regulating valve.

' 1, 1, 1, represent a series or battery of boilers, and 2 is my improved regulator chamber, all-having the same level of water, and the same steam pressure, as the regulator is connected by a main pipe 3 and branch pipes 4,

with the blow-off pipes 5 'of the boilers, and a steam pipe 6 conveys steam from the boilers to the upper partof the regulator chamber. A gage 7 is located outside ofthe regulater chamber 2, 'to indicatel the water level therein and in the boilers, asthe boilers and regulator are` normally maintained in open communication with each other and conditions in` all are thesame. 4

Srepresents the steam pipe direct-ing steam to the pump 9, for forcing water to the boilers, and this pipe 8 has a valve chamber 10 located above the regulator chamber 2. In thev valve chamber 10, a sliding cut-oft' valve 11 is located and its stem 12, which extends through a stuiling box 13 at the top of the regulator chamber, is connected with a float 15 in the regulator chamber. The float 15 is lpreferably half submerged in the water and has a depending guide rod 14 locatedin a vent any lateral displacement of the float. It will thus be seen that as the waterrises in the boilers and regulator chamber, the float will rise and move the valve 1.1 upward to and as the water falls, the lloat will fall to open the steam passage te the steam pump, and by this means thewater will be automatically fed and the feed stopped without any attention from the attendant.

The water pipe 3, as above explained, is connected by branch pipes 1 with the boiler blow-olf pipes 5, and the latter connect with drain pipe 17. 4 At the juncture of pipes 4 and 5, three way plug cocks 18 are located.

munication between pipes 3 and 5 and close the passage to the drain pipe 17, so that the Awater circuit with the` regulator is maintained open with all the boilers, but should it bedesired to blow-oil from any boiler, its plug cock 1S can be turned to close pipe et and open communication with the drain, and other valves 19 are located in the several pipes to permit any boiler to be entirely eut` out' of the circuit, should this be desired A great many slight changes might be of the parts described without departing from my invention, and hence, I would have it understood that I do not restrict myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit i and scope of my invention. A

Having fully described my invention, what I claim as new and desire to secure by Leti 1. In an apparatus of the character described, the combination with a series of l boilers, of a regulator chamber, a drain pipe, blow-oil' pipes connecting all the boilers with the 'drain pipe, a water pipe connecting the regulator chamber with all the blow oil' pipes, l. three-way plug cocks at the `juncture of the l water pipes and blow-oli' pipes, and means ter to the boilers.

These cocks arenormally turned to open com- .made in the general form and arrangement a l controlled by the level of waterrin the regu-2 later chamber for controlling the feed of wacross bar 16 in the regulator chamber to prey close or .partially close the steam passage,

IIO

2. In an apparatus Aofvhe character described,I the combination With a series of boilers, of a regulator chamber, a drain pipe, blow-off pipes connecting all the boilers with the drain pipe, a Water pipe connecting the regulator chamberwinll all Llie blow-0H pipes,

' three-Way cf ks at the juncture of the Water pipes and blow-0H pipes normally turned to open communication With the boiler and .close communication with the drain, Valves permitting thercut'zng out of any boilenfrom L i y i Y i I I the circuit, and means 1n the regulator charnber Controlling the reed of Water to the boilers.

In testimony whereof, I have signed this i presence/of two subscribj JESSIE STEVENS., GEO. G. WEEKS, 

